Suspension and Components Suspension Tubes and Components

Rock Jock

Johnny Joint Kit 97-06 Wrangler TJ/LJ/XJ/MJ Front End Housing (30 or 44) Greasable 1/2 Inch Thru Bolts Reqs. Welding RockJock 4x4

$255.84

SKU: R01U CE-9102K1

In Stock
In Stock
Ships by Jun 20
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Non-Returnable Item
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Description

The RockJock Johnny Joint Differential Housing Kit replaces the rubber front differential housing upper control arm bushings on your Jeep TJ, LJ, XJ, MJ, or ZJ vehicle with Johnny Joint rod ends, allowing for maximum articulation of the front suspension. This kit is ideal for those using Johnny Joint control arms, completing the package by making all control arm mounting points Johnny Jointed for increased articulation. The 1/2-inch bolt option is generally used in racing applications or for heavy-duty setups. The kit includes a machined Johnny Joint insert for the driver’s side of the differential, a weld-in tombstone bracket with a Johnny Joint for the passenger’s side, 1/2-inch greasable bolts for both joints, and an installation tool. RockJock's Johnny Joints are known for their durability and high articulation, featuring a smooth steel ball pivoting inside a proprietary urethane shell, providing over 30 degrees of quiet, shock-dampening articulation without the excessive deflection of soft rubber-based flex joints. They ensure a smooth on-road ride and ultimate off-road capability. The joints are fully greasable via zerk-fitted bolts. The finish includes clear zinc plating on the insert-style Johnny Joint and raw, weldable steel on the tombstone bracket. **Note:** Cutting and welding equipment are required for installation. Drilling is required to enlarge control arm bolt holes to 1/2 inch from the stock 10mm. Johnny Joints require non-synthetic, hi-moly lube grease.

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Specifications

BrandRock Jock
Part NumberR01U CE-9102K1

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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